/*
 * Copyright 2019-2025 the original author or authors.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * https://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.iiifi.kite.cloud.sentinel;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;

import com.alibaba.csp.sentinel.adapter.spring.webmvc.callback.BlockExceptionHandler;
import com.alibaba.csp.sentinel.slots.block.BlockException;
import com.iiifi.kite.core.result.Result;
import com.iiifi.kite.core.util.JsonUtils;

/**
 * KiteBlockExceptionHandler
 *
 * @author kite@iiifi.com 花朝
 */
public class KiteBlockExceptionHandler implements BlockExceptionHandler {
    @Override
    public void handle(HttpServletRequest request, HttpServletResponse response, BlockException e) throws Exception {
        // Return 429 (Too Many Requests) by default.
        response.setStatus(HttpStatus.TOO_MANY_REQUESTS.value());
        response.setContentType(MediaType.APPLICATION_JSON_VALUE);
        response.getWriter().print(JsonUtils.toJson(Result.fail(e.getMessage())));
    }
}
